-- arch/powerpc/patches

Xenomai needs special kernel support to deliver fast and deterministic
response time to external interrupts, and also to provide real-time
services highly integrated with the standard Linux kernel.

This support is provided by the Adeos real-time enabler [1], in the
form of a kernel patch you have to apply against a vanilla kernel
tree, before you attempt to compile the Xenomai codebase against the
latter kernel.

On the PowerPC 32bit architecture, Xenomai is supported on both the
v2.4 and v2.6 Linux kernel series, for which the appropriate Adeos
patches exist. The v2.4 kernel tree of reference for Xenomai/PowerPC
is available from Denx's linuxppc_2_4_devel GIT tree [2]. Adeos
patches for the 2.6 kernel series are currently based on releases from
Denx's linux-2.6-denx GIT tree.

Patches up to kernel 2.6.21 apply against vanilla releases from
kernel.org. Patches from kernel 2.6.22 and on apply against milestones
or snapshots from Denx's public GIT tree [3].

Patches from 2.6.24 to 2.6.26 provide support for the legacy ppc/ tree
(ppc32, uniprocessor only) in addition to the powerpc/ branch.

Just apply one of those patches against the corresponding kernel
release. You may want to have a look at the README.*INSTALL guides at
the top of the Xenomai tree for more information.

This directory only contains the most recent patches used to validate
this Xenomai release on powerpc platforms; you may find the complete
collection of Adeos/I-pipe patches at the following locations (see
note):

* current I-pipe patches based on the powerpc/ tree; each patch
supports both ppc32 and ppc64 platforms:
http://download.gna.org/adeos/patches/v2.6/powerpc/

* older I-pipe patches are available from:
http://download.gna.org/adeos/patches/v2.6/powerpc/older/

NOTE: not all older patches are guaranteed to work with the current
Xenomai release.  However, there is a good chance most of them do,
since we try hard to maintain backward compatibility.

Patch			        Based on GIT commit # / TAG
------------------------------------------------------------------------
2.4.25-DENX-1.2-02/ppc		6d7d0e61a0f7837da59369a19a4eaa0063653bbf
2.6.23-DENX-1.6-00/ppc		208aa3df8645608ff3febb65f83219173dfe4979
2.6.23-DENX-2.0-03/powerpc	3e44e7de644b521c5301c806d90da6feb99158d5
2.6.24.6-DENX-2.4-03/powerpc	331e1d1ac8b64e9c4c37906d3e005f9adda574ab
2.6.24-DENX-*/powerpc		031edb4f3cced0933e3e08f96a3fb4805c2e4cac
2.6.25-DENX-*/powerpc		3d51d2d5fc46e87210575edf784263034edba1d7
2.6.26-DENX-*/powerpc		7b56671345f62f1baf2772ad5736e4f59ed0f213
2.6.27-DENX-*/powerpc		43b4f8924d387ef2f35c4956b94aae1f02d8e4ce
2.6.28.5-DENX-*/powerpc		5931215bdb5412fdd80bebad1d66158dc149ea18
2.6.29.1-DENX-*/powerpc		ad6bad4bf6888f89353945ba90df3b6a5b42b8fa
2.6.29.4-DENX-*/powerpc		5e2fc2073ede8e33409fad91f4caf6db30cbfd76
2.6.30-DENX-*/powerpc		7cb16ec2590815a67e5fb5c8994ead536613d922
2.6.30.3-DENX-*/powerpc		193e7866fc30ae29454fcc4d110166a86a963c9f
2.6.32.3-DENX-*/powerpc		224f363857f05ab44dab3441112965f0a7966788

[1] http://www.gna.org/projects/adeos/
[2] git://www.denx.de/git/linuxppc_2_4_devel
[3] git://www.denx.de/git/linux-2.6-denx.git
